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2016年职称英语考试《综合B》概括大意真题及答案

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2017年02月24日

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  2016年职称英语考试《综合B》概括大意真题及答案

  Tunguska Event

  1.A hundred years ago this week, a gigantic explosion ripped(撕裂)open the clear sky above a forest in western Siberia, leaving a scientific riddle that endures to this day.

  2.A dazzling light pierced the heavens, followed by a shock wave as strong as 1000 atomic bombs. The explosion flattened 80 million trees across an area of 2000 square kilometers. The fireball was so great that, a day later, Londoners could read after the nearly Podkamennaya Tunguska river, still remains a mystery.

  3.Experts suspect it was a rock that, after traveling in space for millions of years, was destined to crash to Earth as exactly 7:17 a.m on June 30, 1908. This possibility worries scientists. "Imagine an unspotted asterold(小行星)hitting a significant chunk of land and imagine if that area, unlike Tunguska, were populated," the British science journal Nature commented recently.

  4.But no fragments of the "rock" have ever been found Finding such evidence would be important, for it would increase our knowledge about the risk posed by dangerous Near Earth Objects (NEOs), say Italian researchers Luca Gasperini, Enrico Bonam and Gisueppe Longo. When the next Tunguska NEO approaches, scientists will have to decide whether to try to deflect(使偏转)it or blow it up in space.

  5.However, several rival theories for the Tunguska Event exist. Wolfgang Kundt, a professor at Germany's Boon University, believes the Tunguska Event was caused by a massive escape of 10 million tons of methane(甲烷)-rich gas from deep within earth's crust. Some people hold that the explosion was caused by an alien spaceship crash, of a black hole in the universe.

  23.Paragraph 2_____

  A.Competing Explanations

  B.Unknown Attacks

  C.Mysterious Explosion

  D.Star War

  E.Importance of Finding Evidence

  F.Explanation that Worries Scientists

  24.Paragraph 3_____

  A.Competing Explanations

  B.Unknown Attacks

  C.Mysterious Explosion

  D.Star War

  E.Importance of Finding Evidence

  F.Explanation that Worries Scientists

  25.Paragraph 4_____

  A.Competing Explanations

  B.Unknown Attacks

  C.Mysterious Explosion

  D.Star War

  E.Importance of Finding Evidence

  F.Explanation that Worries Scientists

  26.Paragraph 5_____

  A.Competing Explanations

  B.Unknown Attacks

  C.Mysterious Explosion

  D.Star War

  E.Importance of Finding Evidence

  F.Explanation that Worries Scientists

  27.The gigantic explosion that occurred a hundred years ago_____

  A.has remained a puzzle

  B.lacks sufficient evidence

  C.is a university professor

  D.was generated by the explosion

  E.will kill many animals

  F.are attacked by aliens

  28.The shock wave which followed the dazzling light_____

  A.has remained a puzzle

  B.lacks sufficient evidence

  C.is a university professor

  D.was generated by the explosion

  E.will kill many animals

  F.are attacked by aliens

  29.The hypothesis that the explosion was caused by a rock colliding with the Earth_____

  A.has remained a puzzle

  B.lacks sufficient evidence

  C.is a university professor

  D.was generated by the explosion

  E.will kill many animals

  F.are attacked by aliens

  30.Wolfgang Kundt, who has developed an alternative theory,_____

  A.has remained a puzzle

  B.lacks sufficient evidence

  C.is a university professor

  D.was generated by the explosion

  E.will kill many animals

  F.are attacked by aliens

  2016年职称英语考试《综合B》概括大意真题答案

  23-30:CFEAADBC


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